anonymous
  • anonymous
Help please! Thank you! (:
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
Rationalize the denominator of sqrt -4/(7 - 3i)+(2 + 5i)
anonymous
  • anonymous
\[\frac{\sqrt{-4}}{(7+3i)+(2+5i)}\]??
ParthKohli
  • ParthKohli
Rationalize or "realize"?

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ParthKohli
  • ParthKohli
And first add the denominators, then conjugation...
anonymous
  • anonymous
start with \[\frac{2i}{9+2i}\]
anonymous
  • anonymous
Yes that is the equation
ParthKohli
  • ParthKohli
I mean simplify.
ParthKohli
  • ParthKohli
Right there, and then find the conjugate
anonymous
  • anonymous
hold on one moment please
anonymous
  • anonymous
ok
anonymous
  • anonymous
Thanks Parth
anonymous
  • anonymous
And satelitte
ParthKohli
  • ParthKohli
Yay. What was your answer?
anonymous
  • anonymous
I got -16 + 18i/7
ParthKohli
  • ParthKohli
Seems incorrect...
anonymous
  • anonymous
ok one second lemme try again
anonymous
  • anonymous
4 + 18i over 85
ParthKohli
  • ParthKohli
That's right
anonymous
  • anonymous
Thank you again!
ParthKohli
  • ParthKohli
No problem at all. :-)

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